"Big Bird Doesn't Fly" is a Sesame Street song performed by The Squirrelles about the many things Big Bird can do, but just can't fly. At the end of the song, the Squirrelles ask Big Bird why he doesn't fly, and he responds "I just haven't learned yet." When he mentions that he's heard that some squirrels can fly, the Squirrelles jump off the wall in a futile attempt at flight. The song parodies "Big Girls Don't Cry" by The Four Seasons.